An approach to measuring locally resolved currents in polymer electrolyte fuel cells

A novel system for measuring local currents in polymer electrolyte fuel cells (PEFCs) has been developed. It has the advantages of a magnetic loop array and allows an easy and highly flexible implementation. This communication deals with our experience and the principle of measurement of this diagno...

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Bibliographic Details
Published in:Journal of the Electrochemical Society 2004, Vol.151 (3), p.A394-A398
Main Authors: GEIGER, A. B, ECKL, R, WOKAUN, A, SCHERER, G. G
Format: Article
Language:English
Subjects:
Applied sciences
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
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Summary:A novel system for measuring local currents in polymer electrolyte fuel cells (PEFCs) has been developed. It has the advantages of a magnetic loop array and allows an easy and highly flexible implementation. This communication deals with our experience and the principle of measurement of this diagnostic method for the current mapping of PEFCs. The feasibility of this approach is demonstrated on a small-scale single-cell direct methanol fuel cell (DMFC). The impact of the operating conditions such as air stoichiometry or anodic flow rate on the current distribution of such a DMFC is discussed.
ISSN:0013-4651
1945-7111
DOI:10.1149/1.1646147